Fast method of data storage / retrieval?
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Hi,
I have a set of file paths that i currently store in cell format every day. For example, Files is a 3x1 cell that contains paths in C:\genscripts
Files =
'C:\genscripts\AT-735-PD_T4P00252.txt'
'C:\genscripts\AT-740-CANcase_projects.txt'
'C:\genscripts\AT-740-PD2_T4R00262.txt'
This Files result is stored in a MAT file with the command
save('myfiles.mat','Files')
and this result is continually repeated (to have a fast and up to date directory of what files are). Is there any way to do this faster?
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Answers (2)
Oleg Komarov
on 2 Aug 2011
Saving .mat files in '-v6' won't compress them and you will save time.
EDIT
save('myfiles.mat','Files','-v6')
2 Comments
Oleg Komarov
on 2 Aug 2011
If you save with in '-v6' format when you load you will save time because no decompression is performed.
Mat file is a good choice. The size of the file matters.
Walter Roberson
on 2 Aug 2011
Saving as text might be even faster.
MyFiles = regexp(fread('myfiles.txt'), '\n', 'split');
or
fid = fopen('myfiles.txt','rt');
MyFiles = textscan(fid,'%[^\n]');
fclose(fid);
or a number of other variations.
What you do might depend in part upon whether your file names are restricted to ASCII, or to UTF-16BE, or are general UTF-8 .
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